Adding Header Image to Whitespace Theme

I’m using an unmodified version of Brian Gardner’s Whitespace 1.0, which he no longer supports. I’d like to use a header image instead of the header text he’s got.

Here’s part of my current header.php:

<div id="header">

		<div id="headerleft">
			<a href="<?php echo get_settings('home'); ?>/"><?php bloginfo('name'); ?></a><br />
			<?php bloginfo('description'); ?>
			</div>			

		<div id="headerright">
			<ul>

				<li><!-- Start Who Links To Me Code 5db077b8e5545e31154c438444146744 -->
				<a href="https://wholinkstome.com/url/bob.ravensbeak.com"><img src="https://wholinkstome.com/images/wltm_1.png" border="0"></a>
			<!-- End Who Links To Me Code --></li>
				<li><a href="<?php echo get_settings('home'); ?>">Home</a></li>
				<?php wp_list_pages('title_li=&depth=1'); ?>
				<li><a href="<?php bloginfo('rss_url'); ?>">RSS</a></li>
			</ul>
		</div>

	</div>

I’m assuming I need to edit something in headerleft, but I’m not sure what to do. I’ve got the image that I want to use sitting in wp-content/themes/whitespace/images. I’ve tried looking through the documentation, but I’m out of my league there.